cav. 



Fig. 174. Rhabditis. Altered from Maupas. A, Mature female. B, Mature 

 male. C, Ventral view of hind end of male, slightly turned to one side so that 

 the vas deferens is seen only to the right of the alimentary canal. D, Side 

 view of hind end of male to show the relations of the cloaca. E, Encysted 

 larva enclosed in the stretched skin {cut.) of the last moult, an. anus ; h.cav. 

 buccal cavity; c.b. copulatory bursa; c.sp. copulatory spicule; cl. cloaca; 

 ex.a. excretory aperture; gl.c. gland cells ;/.^. fore gut; ni.g. mid gut; h.g. 

 hind gut; n.c. nerve collar; ov. ovary; o. egg ready to be fertilized; o. eggs, 

 one just fertilized, the other in the two-cell stage; p.v. pharynx with its 

 valves ; rec.sem. receptaculum seminis ; t. testis ; ut. uterus ; va. vagina ; vd. vas 

 deferens. 



